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Showing results for tags 'deep-sky'.
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In my moderately light-polluted skies, I've been hunting for this galaxy for several nights in a row. Was starting to doubt I'd ever see it. Finally, guided by Stellarium (double-flipped so it matches what I see in the finderscope), I managed to find the right patch of sky. Absolutely no trace of the galaxy in either finderscope, or main scope, but in a 30 second exposure of the DSLR, I finally made out a fuzzy blob. Thrilling moment, I have to say! (I guess that's why we do what we do...). Sadly, I had to rush to get just 10 x 2 minute subs before the clouds came in, but I'm totally inspired and waiting for the next clear night to do a better job. (Skywatcher 200P, EQ5 GoTo mount unguided, Canon 450D ISO 800, 10 x 2min subs, 8 x darks, no flats) Seeing the spiral arms emerge in the longer subs was a first for me - I'm convinced with 32 subs (maybe pushing out to 3 minute exposures) - I'll get a lot more detail and colour. Any suggestions for my next session? The vignetting was something crazy, so I'm certainly taking flats next time.
This one didnt quite go as planned, i think i might have tried to overcorrect for alot of things during post processing, but i might as well share it with you guys anyways. Then again, perhaps i've just stared too much at it during processing.. Anyways, i hope you like it m81 & m82 LRGB L 74 frames of 180s = 222 min R 41 frames of 180s = 123 min G 40 frames of 180s = 120 min B 38 frames of 180s = 114 min Total int. 9,6 hours 8" Reflecltor telescope ZWO ASI 1600mm camera Eq6-R Pro mount L 74 frames of 180s = 222 min R 41 frames of 180s = 123 min G 40 frames of 180s = 120 min B 38 frames of 180s = 114 min Total int. 9,6 hours
For Deep-Sky AP of mostly galaxies (and nebulae), what'll give me the best results– a medium-weight 130 P-DS or a very lightweight wide-field WO Z61? I know the "best" telescope is one that doesn't just collect dust all day long, but I just can't figure it out. Supporting said telescope will be the SW HEQ5 PRO Synscan (with the Rowan Astronomy belt attached), which will be supported further by a autoguiding system, possibly a very lightweight CF 32mm refractor with a ZWO ASI 120mm Mini (Can't find the -S model in Japan). On the telescope'll be the Canon EOS 600D, quite a heavy beast IMO. Instead of leaving it here, I'll say (just blurt out) everything I know about these seemingly-equal telescopes. The 130 P-DS, clocking in at F/5, will produce fantastic photos of Nebulae and Galaxies alike, although its aperture will slightly limit the galaxies it'll see. It seems this telescope does particularly well when it comes to imaging M81 or M51, and Nebulae like the Rosette. Its price-performance ratio is basically unbeatable, as it's only 250$ over here in Japan and it cranks out fantastic images. The only addition I'll need will be a F/5 SW-issued Coma Corrector; however, I don't need to worry as I'll be getting one from me mum in a few week's time. The William Optics Z61, which has a slightly higher F number of 5.9. It sports 2 lenses with FPL-53 elements in them, allowing for extremely high contrast images of nebulae like the Rosette, Orion, all that lot. I've previously asked a similar question, and I've been convinced by the answer that "I won't really be able to take images of galaxies other than M31, Andromeda, and M33, Triangulum. So why do I even have this as an option when I could just go with the cheaper 130 P-DS? Well because it's a wide field APO. Everything it supports, whether it be the design to the focuser, is just amazing, so much so I can't emphasise the emotion enough. On Astrobin, I've checked out what kind of images these telescopes produce, and I encountered a problem– pretty much everyone was using everything but the 600D. They all used the fancy Mono-cooled CCDs like the ZWO ASI 1600MM Pro. Clear skies, Leon.
Hello everyone! I have recently been thinking about the possibility of having my camera modified for astrophotography, but know very little about the subject, and have a good few questions: How much would I gain from this process? As far as I know, the effects of removing IR-Block filters, considerably improves the imaging of H-Alpha objects, but by how much? Roughly how much would this process cost me? How unusable would the camera then become for terrestrial photography? From what I know, it is bad, but editing can improve the situation. If I decided to get my camera modded, where would be a good place to get it done?I don't know much about it, but from what I have heard, it can very a very useful process. Thanks for your help David
Seeing several excellent images of the 'Needle' posted recently by members prompted me to go back and have another go at processing one of my own efforts from a while back. I think this is a worthwhile improvement with more detail extracted in the dust lane. It's 6.4 hours luminance (1x1) and 3.2 hours RGB (2x2), taken with a SW MN190 and QSI583 with OAG. This is a crop of the central area. A wider field view can be seen here: http://universalconstant.com/NGC4565_AP_crop2.jpg